Ember Vs Svelte: Which One To Choose For Web Apps?

Ember vs Svelte

Web application provides feasibility for users to access mobile features in the web platform. It offers a great experience for interaction and the choice of front-end framework determines the design, logic, animation and behavior of application. These days, each front-end development project needs a new approach to rapidly build innovative user-interface. To achieve the expected goals, selection of a right web app framework is very important. Svelte and Ember both are javascript frameworks but they are different in terms of capabilities to build simplified feature-rich web apps or a complex web app. If you are confused to choose the best between these two, then this blog is for you. Before digging to the comparison, let’s see What is Ember and What is Svelte?

What Is Ember?

It is a JavaScript-based front-end framework and widely used to build potential applications that require rich in-app interactions and complex functionality. It is popular to build customized and complex single page applications. Ember offers interactive app development without making the code messy. Emberjs is known for eliminating boilerplate in coding. It also offers program writing with fewer iterations.

Netflix, Microsoft, LinkedIn, TED, Twitch are some of the popular apps built with ember.

What Is Svelte?

Svelte is a Javascript web framework which doesn’t do virtual DOM diffing. Rather, it compiles and converts UI components into a highly efficient imperative code which directly updates the DOM. This allows developers to build intuitive user interfaces with good performance characteristics. In simple words, with Svelte, you write components by using HTML, CSS and JavaScript. During the development process, framework compiles them into small, standalone JavaScript modules. By doing so, you ensure that the browser does as little work as possible that makes your web app faster and code simpler.

Unique quality of Svelte is the addition of first-class support of reactivity. This allows for improved performance without need for a Virtual Dom, which makes Svelte’s rendering fastest of any JS framework. Component-based and lightweight, Svelte is written in TypeScript. But the framework doesn’t need the knowledge of Typescript to use it.

TeamSpeak, Houses Of World, Doka by PQINA, Tableplop are some of the popular apps developed with Svelte.

You can also know the details of building Svelte JS app at- How to build a simple Svelte JS app?

Ember Vs Svelte- A Comparison

1. Learning curve-

Ember –

This framework has a steep learning curve. The MVC pattern is not difficult to learn and understand but it follows a complicated standardized pattern of adopting functions and tools. At the initial stages, someone might find it challenging to learn. The current documentation of Ember is not bad but it is not to the mark of making it easy for beginners. 


It is easy to learn and doesn’t need prior knowledge of javascript code or extra typescript knowledge is required. To build apps with Svelte, Reusable components with individual HTML, CSS, and Javascript code are fundamentals.

2. Architecture-


The older version of Ember follows the MVC architecture pattern. Let’s have a look at MVC.

Model: It provides the objects and elements of the app to wrap database records very quickly.

View: This component of Ember functions as a Ember template which makes use of templating language like Handlebars. This way of structure allows Ember to easily inject data into the view part of an application dynamically.

Controller: In contrast to most frameworks, in Ember, the route handlers deal with the controller tasks, like, getting the data and passing to the view components.

The new version of Ember works with the architecture of component-service and in some cases to provide asynchronous functioning and handle multiple processes simultaneously.


There isn’t any information in the official docs with respect to the architectural aspects of applications built with Svelte. This framework is designed to rapidly interpret user interface inputs. As the Svelte acts as a compiler to render the page with javascript, it eliminates the intermediate steps of loading a virtual structure before reflecting the data into the real user interface. Svelte makes the process faster as far as serving the content to the users relating to this component.

3. Development-


It is a server-side rendering focused framework, which provides tools, plugins, external dependencies needed to build a complex or an advanced application in a feasible manner. Now ember follows the MVC pattern and extends framework by allowing components to access the DDAU functionality pattern and this makes it good to build large-scale apps.


It is not at the stage of building complicated web applications. Svelte builds cybernetically enhanced applications. Other frameworks have the record of dealing with input blocking events, but Svelte hasn’t proved perfect in a particular domain.

4. Performance-

Performance is the important factor for not only large projects but also for small projects too. And it becomes most important while building complex and large projects. So let’s compare Ember and Svelte in terms of performance.


It is a heavyweight framework known for its complicated tools and components which is generally preferred to build large-scale applications. This complexity eases the handling of advanced functions of application, but it lags when the application is launched. This takes a couple of moments before it can start running smoothly. However, the performance of Ember is high. The two-way binding and server side rendering features of Ember provide the possibility to work as a Glimmer rendering engine. Accordingly, it can build rapid rendering speeds. 


From the developer’s perspective, Svelte is a well-optimized framework. It offers a great flexibility to produce high-quality code that performs well. It optimizes the user code at compile time, this implies applications have least runtime overhead-taking the users to have the more benefit of super-fast loading and UI navigation. There are many opportunities where Svelte makes inexpensive efforts to bring app performance than other frameworks. This framework reduces the overhead without dealing with the optimizations related to Virtual DOM, which means Svelte offers great performance without falling into the complexity of Virtual DOM overhead and concurrent modes. 

5. Scalability-


It provides a wide range of tools to build scalable apps. It’s MVVM architecture can provide flexibility without compromising the code composability feature. This provides the ability to render huge data codes with high performance at the same time. Simply, it supports scalability that also good for developing large scale applications or extending an existing application.


It is not the best solution to build scalable applications. However, since it can be used related to other frameworks, there are speculations that it can contribute to building scalable and reusable components.

6. Testing-


It allows developers to write tests in a way that can help fast and automatic refactoring code faster and easier. In simple words, manual testing is not much needed with Ember. It offers tools for testing, some of these are Qunit, Qunit DOM, Mocha, Chai DOM. Ember’s best feature is that the CLI suggests the type of testing that you should undertake based on the setup of the application program.


Svelte is more about contributing small size libraries and less complicated computations. You can write more testable code in Svelte than any other front-end frameworks because the frontend is about how users feel and interact with your web app. This framework is more business-friendly by generating testable code. It pushes the plan to compose unit tests and offers a Svelte testing library, a lightweight solution for testing Svelte components.

7. Security-


It follows security precautions by the regulations practices set by cross-site request forgery tokens.These CSRF practices ensure that Ember apps can be protected against attacks like cross-site scripting, content-security attacks. Ember has a severe Security Policy set up that helps the application’s handlebars to automatically prevent attacks like XSS. 


Till today, there is no listed prerequisites in the official Svelte document regarding security updates and guidelines.

8. Application size-


With ember, building a large scale application or complicated enterprise app needs advanced tools, elements and libraries. At the point when all the necessary components are used, Ember turns out to be more prominent in size than you might expect. You can reduce the app size by choosing the right tools and still the core bundle of app might remain large despite any removal of adjustments made with external libraries and tools used. Simple app built Ember v1.0 turns out to be 272kB size. But for larger projects, this fact is neglected considering the high performance and rich UI Ember can offer.


It creates small size applications. Svelte builds smaller bundle sizes of apps and by that, it is acknowledged as the most accessible Javascript component library to productively run the development.

When To Choose Ember?

  • Choose ember when you want to access the automated and in-built tools of Ember to build a highly flexible web app.
  • Ember will be the good choice while creating a server-side rendering of HTML codes and add-on features to new or existing ember apps.
  • You can go with the ember, if you have to switch the framework of your project without invoking ad-hoc practices.
  • If you’re thinking about reducing scoping errors in the web app to create dynamic templates and modules, go with ember framework.

When To Choose Svelte?

  • Choose Svelte if you want to build a static web application with rich UI and lean time for development.
  • This framework will be the perfect choice to create smaller code bundles to improve all components’ efficiency in the web app with high browser performance.
  • While minimizing the compiling error overhead with the ability to manipulate the DOM to build reactive web apps, go with svelte.
  • When you want to, extensively re-use components for developing web apps.

Final Words-

These are some of the major points of comparison Ember vs Svelte. If you are still confused to choose the best one for your next project, consult with solace experts. We are here to help you through our team of experts. You can hire javascript developers of Solace team to develop the best secured web app. Feel free to reach us for web app development. We will be happy to help you.

Related Post